Mercury Facts

  • Mercury


    Mercury has been known to us since 300BC and is a very small planet close to the sun making it hard to see.  Mercury can only been seen with a telescope before sunset or just after dawn.  It appears as a small spot in front of the surface of the sun. There is no life on Mercury,  extreme temperature changes make this impossible.




    » Mercury is the smallest planet in our solar system
    » It has no atmosphere, ring system or moons
    » It takes 88 days to orbit the sun
    » The temperature on Mercury’s surface is between -170 and 420 degrees Celsius
    » Mercury is the second hottest planet, Venus is the first
    » It has the more craters than any other planet, this is caused by comets and asteroids.
    » Mercury was named after a Roman god, Mercury was the son of Maia Maiestas and Jupiter.
    » Sunrise to sunset, one day on Mercury takes 87 earth days
    » Mercury is 70% iron which is located at its core, making it the second densest planet in our solar system after Earth.
    Two space craft’s have visited Mercury, Mariner 10 and Messenger.


  • DATA

    Diameter (Km) 4879

    Mass 328.5E21 kg

    Density (Kg/m³) 5427

    Temperature (°C) -170 to 420

    Distance from sun (Km) 58 Million

    Rotation period 1407.6 hours

    Length of Day 4222.6 hours

    Orbital period 88 Days

    Number of moons 0

    Magnetic field Yes

    Ring system No